7100 Anesthesia Ventilator
5-2
02/03 1006-0836-000
5.1 Troubleshooting instructions
Some ventilator problems may not generate any ventilator messages, even
though the ventilator may not be functioning correctly:
•
Refer to section 5.2 Troubleshooting guide.
For ventilator problems that result in an Alarm or Error message:
•
Refer to section 5.3 Alarm and Error messages.
To help isolate a problem:
•
Refer to section 5.4 Troubleshooting Flowcharts.
5.2 Troubleshooting guide
Symptom
Probable cause
Action
• Continuous alarm
sounds whenever
system switch is turned
On —
5V Fail Alarm
1. Failure in power section of Control Board.
1. Replace Control Board.
The Control Board includes a hardware generated alarm that sounds continuously if the 5 volt supply
fails.
Symptom
Probable cause
Action
•
AC LED not lit
(Power cord plugged into
live receptacle; AC Inlet
circuit breaker On)
(The problem is most likely
in the +6V supply or in
the LED circuit.)
1. Blown fuses in Control Module’s AC receptacle
2. Universal power supply
3. Front panel keyboard (LED is part of it)
4. Control board
1. Check/replace fuses.
2. Check power supply output.
3. Check ribbon cable connection; replace front
panel keyboard.
4. +6V-------R11------ to LED; replace Control Board.
The LED is powered by the +6V supply from the universal power supply. Turn system switch to On. If ventilator operates from the
backup battery, check 1 and 2. If ventilator operates from line power, check 3 and 4.
Symptom
Probable cause
Action
•
Nothing happens when
System switch is
turned On
(The problem is most likely
somewhere between
the system switch and
the control board.)
1. Cable from J11 of Control Board to SAB/SICB.
2. Cable from System Switch to SAB/SICB.
3. Serial Adapter Board (SAB -Aestiva)
Serial Isolation Connector Board
(SICB - Aespire)
1. Check/jumper cable connection; replace cable.
2. Check cable connection; replace cable.
3. Replace SAB/SICB.
Turning the system switch to On should pull the
RR
R
Reeeem
m
m
m___
_O
O
O
Onnnn signal low on the control board. The above actions verifies the integrity of
the
RR
R
Reeeem
m
m
m___
_O
O
O
Onnnn signal path. First, jumper pins 8 and 15 of J11 on control board to verify that the control board itself is OK.
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